So, China mines 80% of Bitcoins at the moment, right?
Or anyway, 80% of Bitcoins are sold to Yuan.
And they only have some 15 nodes? That's awful, really.
https://getaddr.bitnodes.io/that node tally means nothing..
i know many miners who block incoming data from other IP's and only allow data transfers to the main pool. so even if they have 1000 users. it only shows as 1 IP collectively on the bitnodes.io website.
i also know that some users with the bitcoin-core. do not show up on bitnodes.io.
so take the numbers with a pinch of salt.
even i personally have recoded my client to not link to bitnodes. and instead have a huge list of reliable and loyal bitcoin users that i link to. in the end i dont want to be reliant on a website to be grabbing IP's to establish the network. instead i have multiple IP's in multiple countries, just incase bitnodes messes up, i dont want to limit my connectivity to the bitcoin network.